llHMAC

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/LSL

HMAC

llHMAC

Summary

Function: string llHMAC( string private_key, string msg, string algorithm );

?	Function ID
0.0	Forced Delay
10.0	Energy

Returns a string that is the HMAC hash of msg when using hash algorithm algorithm and secret key private_key.

• string	private_key
• string	msg
• string	algorithm

This function supports md5, sha1, sha224, sha256, sha384, sha512 for algorithm.

Caveats

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Examples

default
{
    state_entry()
    {
        // Key generated using LibreSSL 3.3.6.
        // Generated for demonstration purposes only ;)
        string private_key = "-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----";
        
        // Supported algorithims for llHmac() include:
        // md5, sha1, sha224, sha256, sha384, sha512
        
        string algorithm = "sha1";
        string msg = "Hello, Avatar!";
        
        string digest = llHMAC(private_key, msg, algorithm);
        
        // For the given private_key/msg/algorithm, expect the HMAC
        // digest to be 'xK/3hcR1IVpVK9vftoztuVRGZFE='
        llSay(0, "HMAC digest of message '" + msg + "' using algorithm "
            +  algorithm + " is " + digest);
    }
}

See Also

Functions

•	llSignRSA
•	llVerifyRSA
•	llSHA1String
•	llSHA256String
•	llMD5String

Deep Notes

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Signature
function string llHMAC( string private_key, string msg, string algorithm );